Leave it to those crazy Dutch (no offense ;-)) to create a motorized monocycle that isn’t even street legal! This wheel operates by using a centrifugal clutch on the inner steel frame to engage the 67″ diameter outer flywheel which makes contact with the ground using a rubber tire. A single rider can achieve speeds of 25MPH as the monocycle is powered by a 31cc, four-stroke 1 1/2-hp engine and steered by the passenger leaning to one side or the other. The frame is made of fiberglass which encloses the engine, drive train and fuel tank and provides a cushioned seat for riders up to 275 lbs.
This crazy gadget can run up to 2 hours on a full tank (1/2 gallon) of gas but to own this ultimate single wheeled vehicle you’ll have to pull out your credit card with a high credit limit as this impractical, albeit cool, vehicle is more expensive than Hyundai Accent which comes with a different kind of tilt steering wheel, seat-mounted and side-impact airbags, heating and air and a roof.
You can get your very own for only $12999 + $800 shipping!
Source: Gizmos for Geeks